What materials and specifications are available?

Our tubes are made of DIN2391 St52 carbon steel. We offer various OD and ID sizes, with bore roughness within Ra 0.4 and ID tolerance of H8.

DIN2391 St52 High Precision Honed Seamless Steel Tubes

Name: DIN2391 St52 High Precision Honed Seamless Steel Tubes
Brand: Wuxi Hanhai Hydraulic Machinery Co., Ltd.
SKU: 2010565962

Jiangsu, ChinaWuxi Hanhai Hydraulic Machinery Co., Ltd.

US$1,000.00-2,000.00

1 Ton

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

24 Hours with 7 Days Per Week

Warranty

12 Months

Model NO.

32-1600mm

Type

Seamless

Technique

Cold Drawn

Material

Carbon Steel

Surface Treatment

Oiled

Usage

Hydraulic/Automobile Pipe, Machinery Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Round

Delivery Time

25 Days

Bore Treatment

Honing or Skiving&Roller Burnishing

ID Tolerance

Bore Roughness

Within Ra 0.4

Transport Package

Standard Export Package

Specification

32 to 1600 mm

Trademark

Origin

China

HS Code

8412909090

Production Capacity

5000 Tons/Year

Key features

High Precision Honed Surface: Inner bore roughness within Ra 0.4 with H8 ID tolerance for superior cylinder accuracy.

Wide Customization Range: ID ranges from 32mm to 1600mm with customizable bore treatment like honing or skiving.

Durable Carbon Steel Material: Made from DIN2391 St52 carbon steel with cold drawn technique and oiled surface treatment.

Versatile Industrial Application: Ideal for hydraulic, automotive, machinery, mining, and construction cylinder hole machining.

Comprehensive After-Sales Support: 24-hour service available 7 days a week with a 12-month warranty on all products.

Secure Packaging and Shipping: Anti-rust oil, bubble bags, and wooden boxes ensure safe transport via sea or other methods.

Fast Delivery Time: Standard delivery time is 25 days, with off-season lead time within 15 workdays.

Full Product Ecosystem: Supply includes honed tubes, piston rods, hydraulic cylinders, and related processing machines.

Company profile

Wuxi Hanhai Hydraulic Machinery Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/FactoryExport Year: 2018-09-14Nearest Port: Shanghai, NingboAverage Response Time: ≤2.60hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryThe supplier is a limited company with combined business characteristics, offering honed tubes, piston rods, hydraulic cylinders, cold-drawn tubes, flanges, and related metal-processing services. It reports ISO 9001 and GMP certification, seven production lines, inventory capability, and quality assurance with raw-material traceability. Technical support and product development are stated capabilities, but the detailed data indicates only one R&D engineer and no available SDK. Quality procedures exist, yet several inspection and supplier-management processes lack records. The supplier has export experience and accepts multiple payment methods, but no evidence establishes customer cases or verified financial strength. It also lacks an effective manufacturing-capacity contract with affiliated subcontractors, overseas warehousing, and an overseas showroom.

Supplier typeThe supplier is identified as a limited company with a combined company type. Its stated business covers general equipment and accessories, non-standard metal structural parts manufacturing, processing, and sales, while its listed products include honed tubes, piston rods, hydraulic cylinders, cold-drawn tubes, and flanges.

CertificationsThe supplier reports holding ISO 9001 and GMP certifications. These are explicit certification claims, although the provided information does not include certificate numbers, validity dates, or scope details.

Production capacityThe supplier operates seven production lines, offers manufacturing and processing of metal and hydraulic-related products, and reports inventory capability. However, it has no valid manufacturing-capacity contract with affiliated subcontractors, so the reliability and governance of all stated capacity are not fully established.

Customization capabilityThe supplier explicitly describes design and development support, and its technology engineers are responsible for confirming customer requests and designing new products. Its scope includes non-standard metal structural parts manufacturing and processing, which directly supports customized production capability.